英语高阶语法请找出下面短文中的语法

英语高阶语法请找出下面短文中的语法

说语法，全篇都是语法：
A .Even if that better future is often an illusion, optimism has clear benefits in the present
属一般现在时，even if 引导一个让步状语从句，
B。 Researchers studying heart-disease patients found that optimists were more likely than nonoptimistic patients to take vitamins, eat low-fat diets and exercise, thereby reducing their overall coronary risk. .
这句话主语是 researchers found 是谓语， that optimists were more likely than是宾语从句。
reducing their...是现在分词，表结果。
C。 A study of cancer patients revealed that pessimistic patients under the age of 60 were more likely to die within eight months than nonpessimistic patients of the same initial health, status and age
主语为 a study 谓语为： reveal that pessimistic patients under the age of 60....为宾语从
句。be likely to 短语，意思是“有可能....."
more likely .....than..... 比较等级
往下我就不一一分析了，语法分析大概就这样，当然还可以更详细点。希望我能抛砖引玉吧。

你的提问本身就存在问题。追问共找五个句子
每个句子相对应的语法 说明一下